#ifndef N64_STDARG_H
#define N64_STDARG_H

#ifdef TARGET_N64

// When not building with IDO, use the builtin vaarg macros for portability.
#ifndef __sgi
#define va_list __builtin_va_list
#define va_start __builtin_va_start
#define va_arg __builtin_va_arg
#define va_end __builtin_va_end
#else

typedef char *va_list;
#define _FP 1
#define _INT 0
#define _STRUCT 2

#define _VA_FP_SAVE_AREA 0x10
#define _VA_ALIGN(p, a) (((unsigned int)(((char *)p) + ((a) > 4 ? (a) : 4) - 1)) & -((a) > 4 ? (a) : 4))
#define va_start(vp, parmN) (vp = ((va_list)&parmN + sizeof(parmN)))

#define __va_stack_arg(list, mode)                                \
	(                                                             \
		((list) = (char *)_VA_ALIGN(list, __builtin_alignof(mode)) + \
		_VA_ALIGN(sizeof(mode), 4)),                                \
		(((char *)list) - (_VA_ALIGN(sizeof(mode), 4) - sizeof(mode))))

#define __va_double_arg(list, mode)                                                                  \
	(                                                                                                  \
		(((long)list & 0x1) /* 1 byte aligned? */                                                      \
		? (list = (char *)((long)list + 7), (char *)((long)list - 6 - _VA_FP_SAVE_AREA))          \
		: (((long)list & 0x2) /* 2 byte aligned? */                                               \
			? (list = (char *)((long)list + 10), (char *)((long)list - 24 - _VA_FP_SAVE_AREA)) \
			: __va_stack_arg(list, mode))))

#define va_arg(list, mode) ((mode *)(((__builtin_classof(mode) == _FP &&          \
					__builtin_alignof(mode) == sizeof(double)) \
					? __va_double_arg(list, mode)           \
					: __va_stack_arg(list, mode))))[-1]
#define va_end(__list)

#endif

#else // TARGET_N64

#include_next <stdarg.h>
#warning fuck

#endif

#endif
